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Finding the Fourth Proportional to 291,932.40, 437,558.40 and 134,176.80

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Solution

The fourth proportional to 291,932.40, 437,558.40 and 134,176.80 is: 201,108.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,932.40 : 437,558.40 = 134,176.80 : x
  2. Step 2: Convert to fraction form
    291,932.40/437,558.40 = 134,176.80/x
  3. Step 3: Cross multiply
    291,932.40x = 437,558.40 × 134,176.80
  4. Step 4: Simplify right side
    291,932.40x = 58,710,185,925.12
  5. Step 5: Solve for x
    x = 58,710,185,925.12/291,932.40
  6. Step 6: Final answer
    x = 201,108.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.